Street-cleaner.



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STREET CLEANER. APPLICATION FILED Nov. 29, 1907.

PATENTED APR. 28, 1908.

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No. 888,288. PATENTED A88. 28, 1808.

J. W. SMITH. 88.8888 CLEANER. APPLlGATIOlT FILED NOV. 29, 1907.

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W I TNESSES JOHN W. SMITH, OF DAYTON, OHIO.

STREET-CLEANER.

Specification of Letters Patent.

Patented April 28, 1908.

Application filed November 29, 1.907. Serial No. 404,290.

To all wle/0m it 'may concern.'

.Be it known that l, JOHN lV. SMITH, a citizen of the United States, residing at Dayton,

`in the county of Montgomery and State of Ohio, have invented certain new and useful Improvement-s in Streetlleaners, of which the following is a specification.

My invention relates to cleaners and sweepers and particularly to street cleaners adapted to be drawn through the st-reet by horses or other motive power.

"lhe object of -the invention is to greatly simplify the construction as well as the me( ns and mode of operation of such machines, whereby they will not only be cheap-f' ened in construction, but will be rendered more efficient in use and unlikely to get out of repair.

The street cleaners now in common use are adapted to take up the dirt and dust only when in a substantially dry condition, and only such dirt as can be loosened from the pavement by the brush, which also diffuses the dirt ina cloud of dust.

One Vof the primary objects of the present invention is to provide a machine adapted to take up the mud and muck, as well as the dry refuse, and further one that will remove all the coarse material which may adhere to thc pavement by scraping, and subserpiently remove the liner particles and dust by a combined sweeping and scraping process.

A further object. is to provide a device which maybe attached to the rear of a wagon, and to provide means whereby the material gathered from thc ground will be discharged into the wagon.

A further object is to provide an improved yielding scraper' blade as. hereinafter mentioned.

lith the above primary and other incidental objects in view as-will appear from the specification, the invention consists of the means, mechanism, construction, and inode of operation, or their equivalents hereinafter described and set forth in thoclaims.

Referring to thedrawings Figure 1 is a plan view of the assembled machine. Fig. 2 is a, side elevation of the complete machine. liig. 3 is a detail side elevation of the. lower forward end of one of the elevators, showing the scraper blade and its range of action. Fig. 4 is a plan view of one of the Scrapers with the movable parts of the elevator removed.

Like parts are represented by similar characters of reference throughout the several views.

In constructing the machine there is employed main frame 1 preferably of channel iron, mounted on four wheels in the form of 'a truck, The rear Wheels 2 are .also the drive wheels for the moving parts hereinafter described. rlhe axle 3 of the forward wheels 4 is arched to provide sufficient space for the forwardly anddownwardly extend ing elevator 5. The elevator 5 is pivotally' mountedI in the main frame 1 onA the transverse shaft 6. The elevator 5 is capable of being moved about said pivotal connection, to raise the,

scraper 7 and brush S carried thereby to inoperative osition. Arranged in substantially parallel position above the elevator 5 is another elevator 9 journaled on the shaft 10, mounted on suitable brackets 11 on the main frame. The elevator 9 carries at its lower forward end a scraper 12.

lnasmuch as the detail construction of the two elevators 5 and .1 and the respective Scrapers 7 and 12 are substantially alike a general description will suflico for both. The sides of the respective elevators are prefer-- ably angle irons 13 arranged as shown in Figs. 3 and 4. A flat bottom 14 rests on thc inturned flanges of the angle. irons, forming` a chute. Secured to the lower ends of the angie irons 13 are brackets 1.5 1 6 having bearings -therein for transverse shafts 17, one on each elevator. Similar brackets are located adjacent the u )per ends of the angle irons, and are journaled on the shafts 6 and 10 respectively. Sprocket wheels 19 are mounted on the shafts 17 of the respective elevators. Corresponding sprockets are mounted on the shafts 6 and 10. Endless chain belts 20 are provided on cach of the elevators, which chains are extended about said sprockets. The chains 2() of each elcvator are connected by transverse bars 21 preferably of angle iron, which are attached to the respective chains, and form carriers by which the dirt and refuse is forced' upward. The dirt rests on the bottom 14 of the chute` as shown art 22 and is pushed upward by the action of said angle iron bars 21. Hinged to the lower forward end of the chutes of each of the respective elevators is a yielding scraper blade 7 and 12,which normally'rests on the ground and collects the dirt, -loosenw ing same from the pavement, and collecting the mud and muck as well as the dry material.I The brackets l5 16 at the forward ends of the elevators are provided Iwith projecting arms 24. A spring is attached at one end to the arm 24 and vat the opposite endy to the scraper blade 23. There is preferably one of.these springs 25 on each slde of the blade as shown in Figs. 1 and 4. In event the scraper blade 23 meets withv an immovable obstruction as at 26 Fie. 3 in the course of its travel, the blade wil yield about its 'hinged connection against the tension of the spring 25 as shown in dotted lines of Fig.

After the obstruction is passed the scraper `blade 23 will be returned to normal position by the action of the spring 25. The elevator scraper blade as described and .is adapted to collect the muck and coarse material. ,lhe-elevator 5 is provided with a scraper blade similar to that of the elevator 9 and in addition thereto a revolving brush 8, which follow the scraper of the first elevator', andcollect the dust and ing' sprockets 37.

'i driven from the small particles which may escape the firstscraper. In instances where the mud is heavily caked on the pavement the first Scraper will remove the uppermost layer, and the remainder will be removed by the second scraper; the revolving brush assists in collecting the loose, light particles.

The-brush 8 is journaled in bearings in arms 28 projecting from brackets 15, and is driven by asprocket chain 29 from the adj acent shaft 17. The upper ends of each of the elevators 5 and, 9 overhang a hopper 30 supported on. the main frame l, into which they discharge. A dust hood 3]. is'mounted on the main frame and ine-loses the discharge ends of the said elevators. The bottom of the hopper 30 is formed semi-cyliudrical, to conform to a spiral conveyor 32 located therein by which the material discharged into the ho )per 3() from the said elevators is conveyed aterally to a third elevator 33 which extends forwardly and upwardly as shown in Fig. 1 andserves to convey the n1aterial to the wagon 34 to which the cleaner is attached.

The construction of the elevator 33 is quite similar to that of the other elevators. It is formed of angle irons and )rovided with a bottom as before described. Jour.- naled in suitable brackets 35 adjacent to the upper end of the elevator is a shaft 36 carry- Endless chains 38 having transverseuangle iron carrier slats 39 are mounted to travel over` said sprockets 37 and similar sprocket wheels at the lower end of the elevator. The various moving parts are rear carrying Wheel 2.- `A s rocket 40 on said wheel-.is connected by a c ain`41 to a sprocket 42 on the shaft 43 of the spiral conveyer, which actuates said conveyor. A'sproeket 44 on the shaft 43 back of the sprocket 42 is connected by a chain 45 to a sprocket 46 on theshaft 6 of the elevator 5 and se.. ves to actuate said elevator chains 20, and thereby the brush 27 through the sprocket chain 29. A similar s rocket on' the shaft 6 is connected by a c rain 47 With a s )rocket 4S on the shaft l0, thereby driving the chains 20 of the elevator 9. The elevator 33 is driven by a sprocket chain 49 from the shaft 43 on the opposite side of the machine. The shafts 6 and 10 being bot-h the drive shafts and the journal shafts of the pivoted elevators 5 elevators may be raised and lowered Without interfering in mechanism. The raising and lowering mechanism for the elevators is as follows: Mounted on the forward part of the main frame 1 are brackets 50 in which is j ournaled a shaft 51. Arms 52 on said shaft are connected by a suitable. link or chain 53 with a bail 54 on the uppermost elevator 9. The elevators are connected bya link or'ehain 55, in order that when the elevator' 9 is raised the elevator 5 will be moved to inoperative position also. Secured on the shaft there is also an arm. 56 connected by a link or chain 57 to an arm 58 on a shaft 59 Amounted in bearings in brackets G() near the rear of the machine. An operating lever G1 engaging a notched segment 62 is provided for oscillating said shafts to raise and. lower the elevators. A 63 is provided for the operator. The machine is adapted to be hitched behind a Wagon by suit-able links or chains 64 as shown in Fie. 2. lt is obvious however that horses may be attached directly to the machine and. the elevator 33 and spiral conveyor discon-I nected from their driving mechanism, in which case the material collected Will be retained and carried in the hopper 30.

It will be apparent from the above description that there has thus been produced a street cleaner possessing the particular advantages before enumerated as desirable,

and which obviously is susceptible of modification .in its form, proportion, detail construction, and arrangement ol' parts without departing from the principle riiicing any of its advantages.

claim:

1. In a machine as described, a main frame, carrying wheels therefor, a 'forwardly and downwardly scraper blade terminating said elevator' and adapted to bear upon the ground and to collect refuse material therefrom, and a recep` tacle into which said material is discharged, substantially as specified.

2. ln' 4a machine as described, a niain frame, carrying wheels therefor, a forwardly and downwardly inclined elevator, a scraper blade terminatingsaid elevator and adapted to gather refuse material from the ground, a second forwardly and ,downwardly inclined elevatorand a revolitlng brushv cooperating and 9, said any manner with the drivingl involved orsac-` Having thus described my invention l inclined elevator, a yielding n l frame, carrying wheels therefor, a forwardly and downwarn` ly inclined elevator, ,a scraper blade hinged to the lower portion of said elevator and adapted to bear on the ground and scrape the. material' therefrom, -a spring adapted to return said blade to normal position after the blade has been forced therefrom by Contact with an unyielding obstruction, substantially as specified.

4. In a machine as described, a main frame, carrying wheels therefor, 'a downwardly and forwardly inclined elevator, a scraper blade carried by said elevator and adapted to scrape the refuse material from the ground said scraper blade being further adapted to yield when brought into engagement with an obstruction, and means to return the bladeI to normal position when the obstruction has been passed, substantially as speciiied.

5. In a machlne as described, a main frame, carrying wheels therefor, a forwardly and downwardly inclined elevator, a scraper blade carried by said elevator and adapted to gather refuse material by scraping the ground, a second downwardly and forwardly inclined elevator, a scraper blade and a revoluble brush coperating with said second elevator, and following 1n operation the first named elevator and scraper, and means for 'ctuating said parts, substantially as speci- 6. In a machine as described, a main frame, carrying wheels therefor, two fori wardly and downwardly inclined elevators, scraper blades carried thereon, and adapted to operate successively over the same terri tory, a brush coperating with said Scrapers a hopper into which said elevators discharge,

a sp1ral conveyer within said hopper, an upwardly inclined conveye'r adapted to d1scharge the material from said hop er into an adjacent receptacle or wagon, an means to actuate said parts7 substantially as specified'. In testimony whereof, I have hereunto set my hand this 23rd day of November 1907. a JOI-IN W. SMITH. Witnesses:

HARRY F. NoLAN, FRANKmL. WALKER. 

